釣りざおの力学的特性と機能に関する研究 : テーパ付細長い棒の大たわみ解析

概要

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This paper deals with large deflections of cantilever beams to develop fishing scientifically in the field of so called sports-leisure. The fundamental equations can be obtained in a state of equilibrium under concentrated loads at free end and calculated strictly by means of numerical solution method. From numerical results, fundamental properties for various mechanical quantities are obtained as follows : (1) The large deflections of cantilever beams can be described with dimensionless loads μ_eq, ratios of diameter D_2/D_1 and angles βrespectively. The shapes of deflection curves are dependent of D_2/D_1 considerably. (2) Maximum curvature κ_max and the displacement of free end χ_ι in χ direction are also functions of μ_eq and D_2/D_1. The location ι_Μ and ι_κ where σ_Μmax and κ_max occur do not coincide and the distance ι_Μ is smaller than ι_κ. (3) The stiffness of fishing rods is proposed and discussed as the magnitude of resistance with respect to the large deflections.
公益社団法人精密工学会の論文
1983-09-05